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S 

Bulletin  272  December,  1925  .  £,  ^K^ 


(Emitterttrttt  Agricultural  Experiment  Station 
Nrro  Baopn,  (Cdmtrrttrut 


Report  on  Commercial 

Insecticides  and  Fungicides 

1925 


CONTENTS 

Page 

Introduction     143 

Classification  of   materials    143 

Methods  of  analysis   144 

Results  of  inspection,  etc 144 

Index    i 


The  Bulletins  of  this   Station  are  mailed   free  to   citizens   of   ConnecticuL 


who  apply  for  them,  and  to  other  applicants  as  far 
as   the  editions  permit. 


CONNECTICUT   AGRICULTURAL   EXPERIMENT   STATION 

OFFICERS  AND  STAFF 
December,  1925 


BOARD  OF  CONTROL 
His  Excellency,  John  H.  Trumbull,  ex-officio,  President 

Charles  R.  Treat,  Vice-President   Orange 

George  A.  Hopson,  Secretary  Mount  Carmel 

Wm.  L.  Slate,  Jr.,  Director  and  Treasurer  New  Haven 

Joseph  W.  Alsop   Avon 

Elijah  Rogers  Southington 

Edward  C.  Schneider  Middletown 

Francis  F.  Lincoln    Cheshire 


STAFF. 
E.  H.  Jenkins,  Ph.D.,  Director  Emeritus. 

Administration.  Wm.  L.  Slate,  Jr.,  B.Sc,  Director  and  Treasurer. 

Miss  L.  M.  Brautlecht,  Bookkeeper  and  Librarian. 
Miss  J.  V.   Berger,  Stenographer  and  Bookkeeper. 
Miss  Mary  E.  Bradley,  Secretary. 
G.  E.  Graham,  In  charge  of  Buildings  and  Grounds. 

Chemistry.  E.  M.  Bailey,  Ph.D.,  Chemist  in  Charge. 

Analytical   Laboratory.  R.  E.  Andrew,  M.A. 
C.  E.  Shepard 

Owen  L.  Nolan  >  Assistant   Chemists. 

Harry  J.  Fisher,  A.B. 
W.   T.   Mathis  J 

Frank  C.  Sheldon,  Laboratory  Assistant. 
V.  L.  Churchill,  Sampling  Agent. 
Miss  Mabel  Bacon,  Stenographer. 


Biochemical 

Laboratory- 
Botany. 


Entomology. 


Forestry. 

Plant  Breeding. 
Soil  Research. 


Tobacco   Sub-station 
at   Windsor. 


T.  B.  Osborne,  Ph.D.,  Chemist  in  Charge. 


G.  P.  Clinton,  Sc.D.,  Botanist  in  Charge. 

E.  M.  Stoddard,  B.S.,  Pomologist. 

Miss  Florence  A.  McCormick,  Ph.D.,  Pathologist. 

Willis  R.  Hunt,  Ph.D.,  Assistant  in  Botany. 

A.  D.  McDonnell,  General  Assistant. 
Mrs.  W.  W.  Kelsey,  Secretary. 

W.  E.  Britton,  Ph.D.,  Entomologist  in  Charge;    State  Ento- 
mologist. 

B.  H.  Walden,  B.Agr.        ) 

M.  P.  Zappe,  B.S.  Y  Assistant  Entomologists. 

Philip  Garman,  Ph.D.       ' 

Robert  B.  Friend,  B.S.,  Graduate  Assistant. 

John  T.  Ashworth,  Deputy  in  Charge  of  Gipsy  Moth  Work. 

R.  C  Botsford,  Deputy  in  Charge  of  Mosquito  Elimination. 

Miss  Gladys  M.  Finley,  Stenographer. 

Walter  O.  Filley,  Forester  in  Charge. 
H.   W-   Hicock,  M.F.,  Assistant  Forester. 
Miss  Pauline  A.  Merchant,  Stenographer. 

Donald  F.  Jones,  S.D..  Geneticist  in  Charge. 
P.  C  Mangelsdorf,  S.D.,  Assistant  Geneticist. 

M.  F.  Morgan,  M.S.,  Investigator. 

George  D.   Scarseth,   B.S.,   Graduate  Assistant. 

Paul  J.  Anderson,  Ph.D.,  Pathologist  in  Charge. 
N.   T.   Nelson,   Ph.D..,  Assistant  Physiologist. 


THE    TUTTLE,     MOREHOUSE     &    TAYLOR     COMPANY 


Examination  of  Insecticides, 
Fungicides,  Etc. 


E.  M.  Bailey* 


INTRODUCTION. 


The  Legislature  of  1923  passed  an  act  concerning  the  manu- 
facture, sale  and  transportation  of  adulterated  insecticides  and 
fungicides.  The  text  of  the  law  and  regulations,  made  as  provided 
therein  for  its  enforcement,  are  given  in  Bulletin  258  issued  by 
the  station  in  1924.  Both  the  law  and  such  regulations  as  have 
been  made  are  substantially  the  same  as  the  federal  law  and  regu- 
lations so  that  articles  of  this  class  which  satisfy  the  requirements 
of  interstate  commerce  will  be  accepted  in  this  State. 

The  law  requires  this  station  to  make  analyses  of  samples  which 
may  be  collected  by  the  Dairy  Commissioner  or  by  our  station 
agent.  Evidence  of  adulteration  or  misbranding  is  required  to  be 
reported  to  the  Dairy  Commissioner  who  is  responsible  for  enforce- 
ment of  the  law.  Analyses  and  such  other  information  regarding 
the  character,  composition  and  use  of  these  materials  as  may  be  of 
interest  are  required  to  be  published  in  bulletins  of  this  station, 
either  annually  or  at  other  intervals  as  may  be  advisable.  The 
law  carries  no  specific  appropriation  for  the  inspection  work  and 
a  complete  survey  of  the  entire  field  of  insecticides  and  fungicides 
each  year  is  not  thought  to  be  advisable  or  necessary. 

During  the  past  year  our  agent  has  collected  samples  of  lead 
arsenate  and  other  arsenicals,  and  miscellaneous  materials ;  exam- 
inations have  been  made  also  of  products  submitted  from  time  to 
time  by  the  Department  of  Entomology,  and  the  Department  of 
Botany  of  this  station. 

CLASSIFICATION  OF  MATERIALS. 
The  samples  analyzed  may  be  classified  as  follows : 

Materials  No.  of  samples 

Lead  Arsenate    15 

Bordeaux-Lead  Mixtures    5 

Sulphur  Preparations  6 

Nicotine  Preparations    7 

Emulsions     3 

Miscellaneous  (including  A.  O.  A.  C.  collaborative  samples)  . .  13 


*  Analytical  data  are  by  Messrs.   Andrew  and  Fisher.     Inspection  and 
sampling  by  Mr.  Churchill. 


144  CONNECTICUT    EXPERIMENT    STATION  BULLETIN    272 

METHODS  OF  ANALYSIS. 

The  methods  of  analysis  employed  are  those  authorized  by  the 
Association  of  Official  Agricultural  Chemists  unless  otherwise 
stated. 

RESULTS  OF  INSPECTION  AND  ANALYSIS. 
Arsenate  of  Lead. 

The  specifications  for  arsenate  of  lead  as  defined  in  the  law  of 
this  State  are  the  same  as  those  required  by  the  Federal  Insecticide 
Act. 

Dry  arsenate  of  lead  must  contain  not  less  than  twenty-five  per 
cent  of  total  arsenic  oxide  (As2Og),  and  arsenic  in  water-soluble 
forms  not  exceeding  one  and  one-half  per  cent. 

Arsenate  of  lead,  not  dry  or  powdered,  may  contain  not  more 
than  fifty  per  cent  of  water ;  not  more  than  seventy-five  one- 
hundredths  per  cent  of  arsenic  in  water-soluble  forms,  expressed 
as  arsenic  oxide  (As205)  ;  and  not  less  than  twelve  and  one-half 
per  cent  of  total  arsenic  oxide  (As205). 

Analyses  of  the  products  examined  are  given  in  Table  I. 


LEAD   ARSENATE 


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CONNECTICUT   EXPERIMENT    STATION 


BULLETIN    272 


Bordeaux-Lead  Arsenate,  etc. 

2465.  Pyrox.     Bowker  Chemical  Co.,  New  York. 

2467.  Bordo-Lead.     Chipman  Chemical  and  Engineering  Co.. 
New  York. 

2481.     Bordo-Arsenate.     Glidden  Co.,  Cleveland,  Ohio 

2468.  Hexpo.     H.  J.  Smith  Co.,  Utica,  N.  Y. 

2466.  Bordo-Lead  Mixture.      Vreeland   Chemical   Mfg.   Co., 
New  York. 

Analyses  are  given  in  Table  II. 

Table  II.    Analyses  of  Bordeaux-Lead  Arsenate,  etc. 


Condition. 

Water. 

Arsenic  Oxide,  As£0B. 

Copper 

No. 

Total. 

Water-Soluble. 

Lead 
Oxide, 
PbO. 

Guaran- 

CuO. 

Found. 

teed, 

not  less 

than. 

Found. 

teed, 

not  more 

than. 

'%' 

% 

% 

% 

% 

'% 

% 
I.28 

2465 

Paste 

65-95 

5-57 

5-001 

O.06 

O.461 

8-39 

2467 

Dry 

8-73 

7.291 

O.18 

O.381 

20.62 

I5.24 

2481 

Dry 

14-77 

5.90 

0.18 

0.501 

16.66 

26.64 

2468 

Dry 

8-37 

6.90 

O.28 

0.501 

22.62 

18.89 
18.32 

2466 

Paste 

44.23 

8.91 

5.58 

O.II 

0.781   ; 

3-22 

1  Calculated  from  amount  guaranteed  as  metallic  arsenic. 

Sulphur  Preparations. 

2506.  Sulfocide.  B.  S.  Pratt  Co.,  New  York.  This  product 
was  labeled:  Sodium  polysulphide  39-40  per  cent;  sodium  thio- 
sulphate  1-2  per  cent;  inert  ingredients  58-60  per  cent. 

Analysis  showed  the  following  composition: 

Total  sulphur   33-78  per  cent 

Sulphur  as  monosulphide  7.79 

Sulphur  as  thiosulphate   2.56 

Sulphur  as  sulphate    0.25 

Polysulphide  sulphur   (by  difference)  23.18 

Equivalent  to  sodium  polysulphide  . .  38.48 

Sodium  polysulphide  is  assumed  to  be  the  pentasulphide  in  the 
above  calculation. 

2518.  Niagara  Pomodust.  Niagara  Sprayer  Co.,  Middleport, 
N.  Y.  The  active  ingredients  claimed  are  sulphur  not  less  than 
87  per  cent ;  arsenic  (metallic) ,  not  less  than  1.76  per  cent ;  arsenic, 
water-soluble  (metallic),  not  more  than  0.50  per  cent. 

Analysis  showed  the  following : 

Total  arsenic   (metallic)    1.84  per  cent 

Water  soluble  arsenic   (metallic)    ...       0.12    "       " 
Total    sulphur    89.73     "        " 


NICOTINE    PREPARATIONS  147 

22695.     Sulphur- Arsenate  Dust  90-10;    and   22696,   Sulphur- 
Arsenate  Dust  83-15.     John  Bacon,  Gasport,  N.  Y. 
Analyses  were  made  as  follows : 

, 22695 ,       22696 , 

Found.  Guaranteed.   Found.  Guaranteed. 

%  %  %  % 

Total  arsenic  as  AssO=     2.85  ....  3.74  .... 

as  As    1.86  1.90  2.44  2.80 

Water  sol.  arsenic  as  As=0=  0.17  ....  0.22  .... 

as  As     0.11  0.10  0.14  0.15 

Total  sulphur1  88.27  88.50  84.75  83.00 

1  Sulphur  determined  by  the  U.  S.  P.  method  IX,  and  sulphur  in  the  undissolved 
residue  by  the  A.  O.  A.  C.  method,  Sec.   19,  p.  20. 

2551.  Sulphur  Dust.  Sample  submitted  by  Department  of 
Entomology  and  examined  for  presence  of  lead  arsenate.  Quali- 
tative tests  showed  presence  of  both  arsenic  and  lead. 

1855.  Lime-sulphur.  (Blanchard's).  1856.  Grassellrs.  Sam- 
ples were  submitted  by  a  purchaser  and  the  following  determina- 
tions were  made. 

No.  1855  No.  1856 

%  % 

Specific  gravity  at  22°  C 12333  1.3080 

Baume  degrees   27.4  34-10 

Total   sulphur    19.62  26-35 

Nicotine  Preparations. 

2476.  Black  Leaf  40.  Tobacco  By-Products  and  Chemical 
Corporation,  Louisville,  Ky.  Active  ingredient  nicotine.  40  per 
cent.     Nicotine  found  40.93  per  cent. 

2517.  Niagara  A  1  Dust.  Niagara  Sprayer  Co.,  Middleport. 
N.  Y.  Claimed  to  contain  2.7  per  cent  of  nicotine.  Nicotine 
found  2.78  per  cent. 

2469.  Hall's  Nicotine  Sulphate  Solution,  40  per  cent  nicotine. 
Hall  Tobacco  Chemical  Co..  St.  Louis,  Mo.  Nicotine  found  40.61 
per  cent. 

2919.  Nico  Fume  (Liquid).  Tobacco  By-Products  and  Chem- 
ical Corporation,  Inc.,  Louisville,  Ky.  Claimed  to  contain  40  per 
cent  free  nicotine.     The  product  contained  42.90  per  cent. 

2920.  Nico  Fume  Tobacco  Powder.  Tobacco  By-Products 
and  Chemical  Corporation,  Inc..  Louisville,  Ky.  This  product 
was  guaranteed  to  contain  12.5  per  cent  nicotine  and  the  package 
was  dated  to  indicate  the  time  after  which  the  above  guaranty 
would  not  hold.  The  sample  was  purchased  after  the  expiration 
of  the  period  indicated,  but  attention  was  called  to  that  fact  by  the 
dealer  and  the  article  was  sold  at  a  reduced  price.     The  nicotine 


M8  CONNECTICUT    EXPERIMENT    STATION  BULLETIN    272 

found  was  12.71  per  cent,  indicating  that  the  precaution  on  the 
label  gave  the  manufacturer  an  ample  margin  of  safety. 

22371.     Tobacco  Dust.     Submitted  by  E.  M.  Ives,  Meriden. 

Analysis : 

Nicotine   found    0.71% 

Passed  200  mesh  96.00% 

1300.  Nicotine  Dust.  (Old  Sample.)  Submitted  by  Depart- 
ment of  Entomology. 

Analysis:         Nicotine  found  1.96% 

Spray  Emulsions. 

1465.  Soluble  Spray  Oil  for  dormant  spraying.  Clarkson  & 
Ford,  New  York.  Sample  submitted  by  the  Lyman  Farm, 
Middlefield,  Conn. 

Partial  analysis  was  made  as  follows : 

%     ■ 

Specific  gravity  250  C 0.9333 

Unsaponifiable    85.10 

Rosin    present 

The  mixture  is  a  light  petroleum  oil  containing  a  sodium  soap, 
probably  sodium  rosinate. 

2507.  Pratt's  Carboleine.  B.  G.  Pratt,  50  Church  St.,  N.  Y. 
Sample  submitted  by  the  Department  of  Entomology  of  this 
Station. 

Found.  Guaranteed. 

Analysis                                                     %  % 

Oil    88.74  86.00 

Phenol     present  3.00 

Ash     1.22  

Water,  determined  by  xylol, 

11. 17,  by  difference   10.04  ■••• 

The  product  was  claimed  to  contain  83  per  cent  mineral  oil  and 
3  per  cent  saponifiable  oil.  Potassium  oxide  was  claimed  to  be 
1  per  cent. 

2508.  Anthracine  Oil  Emulsion.  The  Sherwin-Williams  Co. 
Sample  submitted  by  Department  of  Entomology.  Claimed  to 
contain  anthracene  oil  75  per  cent,  fish  oil  soap  3  per  cent,  water 
22  per  cent. 

Analysis : 

Total  oil  72.63  per  cent 

Water   (xylol  method)    25.08    " 

Soap  and  undetermined   2.29     "       " 


miscellaneous  products  149 

Miscellaneous. 

2475.     Kayso.     Golden  State  Sales  Corp.,  New  York. 

Analysis  : 

Nitrogen     3-30% 

Casein  ( N  x  6.38)    21.05 

Lime    (CaO)    44-32 

1600.  Lead  arsenate  coated  with  lead  stearate  for  experimental 
purposes  (by  Department  of  Entomology)  was  found  not  to  have 
increased  in  water-soluble  arsenic  during  the  period  of  one  year. 
At  the  two  intervals  the  results  for  water-soluble  arsenic  (as 
As2Os)  found  were  0.09  in  both  cases. 

2514.  Calcium  Fluosilicate  Compound.  Victor  Chemical 
Works,  New  York.  Submitted  by  Department  of  Entomology. 
Claimed  to  contain  calcium  fluosilicate  not  less  than  15  per  cent 
and  inert  ingredients  not  over  85  per  cent. 

Partial  analysis  was  made  as  follows : 

Phosphorus  pentoxide   (P^O)    28.37% 

Calcium  oxide   (CaO)    21.80 

Iron  and  aluminum  oxides    (AlsO^FesO^)  20.60 

Silica    (SiO)    11. co 

Flourine   (F)    1 1.95 

2505.  Atlas  "A"  Weed  Killer.  Chipman  Chemical  Co.,  New 
York.  Labelled  as  containing  45  per  cent  of  sodium  arsenite 
equivalent  to  4  pounds  arsenic  trioxide  per  gallon. 

Analysis : 

Total  arsenic  found  (as  metallic)   23.67% 

Calc.  as  sodium  arsenite  (Na=HasO) . .  . .   53.64 

23420,  23421,  23422,   23423  and  23426.    Experimental  mixtures 
examined  for  the  Department  of  Entomology. 
Water-soluble  arsenic  only  was  determined. 

2591  and  2592,  Fish  Oil  Soaps;  and  2593  and  2594.  Engine 
oil  emulsion  and  Kerosene  emulsion  respectively.  These  were 
examined  in  collaboration  with  the  A.  O.  A.  C.  referee's  program 
for  study  of  methods  of  analysis. 

The  results  obtained  are  reported  elsewhere1  but  they  are  sum- 
marized here  for  reference. 

2591  2592 

%  % 

Water,  Xylol  method   29.95  32.66 

29.96  32.49 

Official  method   30.00  32.06 

29.92  32.08 

1  Proceedings,  A.  O.  A.  C.     1925. 


I 50               CONNECTICUT    EXPERIMENT    STATION  BULLETIN    2.J3 

2593  2594 

%  % 

Ash     1.04  0.29 

1.08  0.28 

Water    (xylol  method)    ....     33.22  36.71 

33.28  36.93 

Total   Oil    65.26  63.40 

65.00  62.70 

Potash    (K2O)    0.63 

0.65 

Soda    (Na=0)    0.14 

0.15 


INDEX 

(Including  analyses,  etc.,  previous  to   1925.     Citations  are  to  the  annual 
report  of  the  station  for  the  years  indicated.) 


Page 

Ace-Hy,  '22,   161    

Anthracine  Oil  Emulsion    148 

Arsenate  of  Lead,  analyses  of,  '07,  323;   '22,  150;    '24,  369 145 

brands : 
Acme    White    Lead    &    Color    Works,    Acme, 

'22,   151 

Adler  Color  &  Chemical  Co.,  Eagle,  '07,  323 

American  Horticultural  Distributing  Co.,  Target, 

'07,   323    

Bowker  Co.,  The,  Bowker's,  '22,  151  145 

Disparene,  '07,  323   

Chipman  Chemical  Eng.  Co.,  Chipman  145 

Corona  Chemical  Co.,  Corona  Dry,  '22,  151 

Detroit  White  Lead  Works,  Rogers,  '22,  151 

Devoe  &  Reynolds  Co.,  Inc.,  Devoe,  '22,  151 

General  Chemical  Co.,  Orchard,  '22,  151 

Glidden  Co.,  The,  Glidden,  '22,  151   

Grasselli  Chemical  Co.,  The,  Paste,  '22,  151;  Dry     145 

Interstate  Chemical  Co.,  Key-Dry,  '22,  151   145 

Kiltone  Co.,  The   145 

Lavenburg,  F.  L.,  Star,  '07,  323   

Leggett  &  Bro.,  Anchor,  '07,  323;    '22,  151 

Merrimac   Chemical   Co.,  Stfift's,  '07,   323 ;    '22, 

151 

Monmouth  Chemical  Co.,  '07,  323 

Niagara  Sprayer  Co.,  Niagara  145 

Nitrate  Agencies  Co.,  Naco,  '22,  151   145 

Pittsburgh  Plate  Glass  Co,,  Corona  Dry  145 

Powers-Weightman-Rosengarten    Co..    '07,    323 ; 

'22,   151    

Riches  Piver  &  Co 145 

Schoonmaker  &  Son,  Aiboneta,  '07,  323 

Sherwin-Williams   Co.,  The,  '22,   151    145 

Smith  &  Co.,  D.  B.,  Lightening   145 

Vreeland  Chemical  Co.,  Electro,  '07,  323  145 

directions  for  use  of,  '07,  330 

formula  for,  '07,  330  

methods  of  analysis,  '07,  322   144 

Atlas  "A"  Weed  Killer   149 

Axfixo.  '24,  371    

Be-Health,  '24,  376   

Black  Leaf  40,  '22,  154 147 

Bordeaux  Mixtures,  etc.,  analyses  of,  '22,  153  146 

brands : 

Bowker  Chemical  Co..  Pyrox 146 

Bowker  Insecticide  Co.,  Pyrox,  '22,  157 

Chipman  Chemical  &  Eng.  Co.,  Bordo-Lead     146 


11  CONNECTICUT    EXPERIMENT    STATION  BULLETIN    272 

Bordeaux  Mixtures,  etc. — brands  :  Page 

General  Chem.  Co.,  Zinc-Bordeaux,  '22, 
153    

GHdden  Co.,  The,  Bordo-Arsenate,  '22, 
153    •• 146 

Grasselli  Chemical  Co.,  The,  '22,  153 

Interstate  Chem.  Co.,  Key,  Bordo-Lead, 
'22,   153    

Leggett  &  Brother,  Anchor  Brand,  '22, 
153;    Bordeaux-Paris-green,  '22,   153 

Nitrate  Agencies  Co.,  Bordeaux-Paris- 
green,  '22,  153  

Smith  &  Co.,  D.  B.,  Hexpo,  '22,  157 '   146 

Sterling  Chemical  Co.,  Sterlingzvorth,  '22, 

153    

Vreeland  Chemical  Co.,  Bordo-Lead  Mix- 
ture           146 

Borecide,  '22,  160  

Bug  Death,  '22,  159 

Calcium  Fluosilicate   Compound    149 

Carboleine,    Pratt's    148 

Casein  Spreaders,  analyses  of,  '24,  369 149 

brands : 

Casein  Mfg.  Co.,  A-7-ML,  '24,  369 

California  Central   Creameries,  Kayso,  '22,    161 ; 

'24,   369    

Golden  States  Sales  Corp.,.  Kayso  149 

Rosin  &  Co.,  Red  Diamond,  '24,  369 

Cigarettes,  nicotine  in,  '22,  156  

Copper  Calcium  Arsenate,  '22,  152 

Copper  Dusts,  analyses  of,  '24,  370 

brands : 

Dosch  Chemical  Co.,  Dosch  B-12,  '24,  370 

Niagara    Sprayer    Co.,   Niagara   Potato   Dust  D-25, 

'24,  37o 

Sanders  Dust,  '24,  370  

Emulsions,  spray,  analyses  of  148 

brands : 

Clarkson  &  Ford,  Soluble  Spray  Oil  148 

Pratt,  B.  G.,  Pratt's  Carboleine   148 

Sherwin-Williams     Co.,     The,     Anthracine     Oil 

Emulsion    148 

Fish  Oil  Soap,  '22,   160   H9 

Fungicides,  law  concerning,  '24,  365   

regulations  concerning,  '24,  363 

He-Bo,  '22,  159 

Hellebore,  analyses  of,  '22,  156  

Herbicide,  '24,  376  

Hexpo,  '22,   157    T46 

Insecticides,  law  concerning,  '24,  365   

regulations  concerning,  '24,  363 

Jebl,  '22,  154  

Kayso,  '22,  161 ;    '24,  369  T49 

Keresol,  '24,  373  

Key-Cide,  '22,  157  

Lead  Arsenate  (See  Arsenate  of  Lead") 

Mag-O-Tite,  '22,  159   


INDEX  HI 

Page 

Mechlings  P.T.B.,  '22,  160  • 

Naco  Kalibor,  '22,  157  

Nickel  Carbonate,  '22,  160   .         

Nicotine  preparations,  analyses  of,  '22,  154;    '24,  370 147 

brands : 

Hall  Tobacco  Chemical  Co 147 

Heightstown  Hdwr.  Co.,  Axfixo,  '24,  371 

Niagara    Sprayer    Co.,    Contact   Mxtr.,   D-i, 

'24,  371 ;    Niagara  A-i  Dust  147 

Rice,  J.  H.,  Jebl,  '22,  154 

Tobacco      By-Products      &      Chem.      Corp., 

Black  Leaf  40,  '22,  154  147 

Nico  Fume,   (liquid)    147 

Nico  Fume,  (tobacco  powder)    147 

Paris  green,  analyses  of,  '07,  328 ;   '22,  148 

brands : 

Ansbacher  &  Co.,  A.  B.,  '07,  327   

Barry,  E.  J.,  '07,  327  

Blanchard,  J.  A.,  '07,  327  

Hermann  &  Co.,  '07,  327  

Leggett  &  Brother,  '07,  327 ;    '22,  153  

Nitrate  Agencies  Co.,  Naco,  '22,  153  

Pfeiffer,  I.,  '07,  327  

Raynolds  &  Co.,  C.  T.,  '07,  327  

Sherwin-Williams  Co.,  '07,  327  

directions  for  use  of,  '07,  330  

formula  for,  '07,  331   

methods  of  analysis,  '07,  322;   '22,  148;   '24,  369 

Pomodust,  '24,  370   146 

Pyrox,  '22,  157   146 

Qykade,  '24,  376 

Roach  Liquid  (Pied  Piper  Service),  '24,  376  

Powder  (Pied  Piper  Service),  '24,  376 

Salairacine,  '22,  161  

Schnarr's  Insecticide,  '24,  373   

Slug  Shot,  '22,   159   

Soap,  fish  oil,  '22,  160  149 

Solbar,  '24,  371  

Star  Water,  '24,  377  

Sterlingworth  Cut  Worm  Killer,  '22,  159 

"Sulco — V.  B.,"  '22,  162  

Sulfocide,  '22,  160  

Sulfodust,  '24,  371  

Sulphur  preparations,  analyses  of,  '24,  370  146 

brands: 
Bacon,  John,  Sulphur- Arsenate  Dust  83-15. . .     i^j 
Sulphur- Arsenate  Dust  go-10 . .  .     147 

Bayer  Co.,  Solbar,  '24,  371  

Niagara  Sprayer  Co.,  All-in-One,  '22,  157. . . . 
Contact    Mixture,    '22, 

162    

Pomodust,  '24,  371 ....     146 

Sulfodust,  '24,  371 

Sulphur    Comp.,    Solu- 
ble, '24,  372  

80-10-10    Mixture,    '22, 

157    

85-15-Mixture,  '22,   157 


IV  CONNECTICUT    EXPERIMENT    STATION  BULLETIN    272 

Sulphur  preparations — brands  :  Page 

Pratt  Co.,  B.  S.,  Sulfocide,  '22,  160 146 

Lime-Sulphur    147 

Sun  Miscible  Oil,  '24,  373   

Tobacco,  analyses  of,  '24,  372 

healthy  leaves  and  diseased  leaves,  '24,  372 

dust   148 

Verm-O-Spray,  '24,  376 

Wesco  Bleaching  Water,  '24,  377  


5388 


University  of 
Connecticut 

Libraries 


39153028954198 


